SWD9001 desalination caisson special polyurea  anticorrosion wearable protective coating


SWD9001 desalination caisson special polyurea anticorrosion wearable protective coating

short description:

Product descriptions    SWD9001 desalination caisson special polyurea is a 100% solid content aromatic polyurea elastomer material. It has high anticorrosion and erosion resistance to seawater and with high cathodic disbonding resistance. It has been widely applied in the large-scale desalination engineering projects in America, Australia and domestic China.

Product Applications

Anticorrosion waterproof protection of seawater desalination tanks, offshore wharf and other marine equipment. It has high chemical resistance, anticorrosion waterproof and sea water resistance, to extend the service life for over 30 years. 

Product information

Item A B
Appearance     Pale yellow liquid Adjustable color
Specific gravity (g/m³) 1.08 1.02
Viscosity(cps)@25℃ 820 670
Solid content (%) 100 100
Mix ratio (Volume ratio) 1 1
Gel time(second)@25℃ 4-6
Surface dry time(second) 15-40
Theoretical Coverage (dft) 1.05kg/㎡ Film thickness 1mm

 Physical properties


Test standard Results
Hardness (Shore A) ASTM D-2240 90
Elongation rate(%) ASTM D-412 450
Tensile strength(Mpa) ASTM D-412 20
Tear strength (kN/m) ASTM D-624 72
Impermeability (0.3Mpa/30min) HG/T 3831-2006 Impermeable
Wear resistance (750g/500r)/mg HG/T 3831-2006 4.5
Adhesive strength(Mpa)concrete base HG/T 3831-2006 3.2
Adhesive strength(Mpa) steel base HG/T 3831-2006 11.5
Density(g/cm³) GB/T 6750-2007 1.02
Cathodic disbondment [1.5v,(65±5)℃,48h] HG/T 3831-2006 ≤15mm


Application guide

Recommend spray machine GRACO H-XP3 Polyurea spray equipment
Spray gun Fusion-air purge or mechanical purge
Static pressure 2300-2500psi
Dynamic pressure 2000-2200psi
Recommend film thickness 1000-3000μm
Recoating interval ≤6h


Application note

 Agitate part B uniform prior to application, thoroughly mix the deposited pigments, or the product’ quality will be affected.

  spray polyurea within the proper time if the substrate surface is primed. For the application method and interval time of SWD polyurea speical primer please refer to SWD companies’ other brochure.

  Always apply SWD spray polyurea on a small area before large application to check the mix ratio, color and spray effect are correct. For detailed information of application please refer to the latest instruction sheet of the application instructions of SWD spray polyurea series . 

Product curing time

Substrate temperature Dry Walking intensity complete solidify
+10℃ 28s  45min 7d
+20℃ 20s  15min 6d
+30℃ 17s  5min 5d

Note: the curing time varies with the environment condition especially the temperature and relative humidity.


Shelf Life

* From the manufacturer date and on the original package sealed condition:

Part A: 10 months

Part B: 10 months

*storage temperature:+5-35°C

Packing: Part A 210kg/drum, part B 200kg/drum

Make sure the product package sealed well.

* store in cool and ventilated place, avoid direct sunshine exposure.


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